公开(公告)号：US12192038B2

公开(公告)日：2025-01-07

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gregory Morozov ,  Guotong Wang ,  Dae Won Lee ,  Gang Xiong ,  Sameer Pawar ,  Jie Zhu

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26

Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.

公开(公告)号：US12127237B2

公开(公告)日：2024-10-22

申请号：US18364782

申请日：2023-08-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/542 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04W72/541

CPC classification number: H04W72/542 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/541

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

公开(公告)号：US20240306152A1

公开(公告)日：2024-09-12

申请号：US18667522

申请日：2024-05-17

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Joonyoung Cho ,  Alexei Davydov ,  Seunghee Han ,  Yushu Zhang

IPC: H04W72/20 ,  H04L1/1812 ,  H04L5/00 ,  H04W84/04

CPC classification number: H04W72/20 ,  H04L1/1812 ,  H04L5/0053 ,  H04W84/042

Abstract: Techniques discussed herein can facilitate multi-transmission reception point (multi-TRP) operation for new radio (NR). One example apparatus may be employed at a user equipment (UE) and may comprise one or more processors configured to transmit uplink control information (UCI) on two physical uplink control channels (PUCCHs). The two PUCCHs occupy different symbols in the same slot.

公开(公告)号：US12068996B2

公开(公告)日：2024-08-20

申请号：US17442502

申请日：2020-04-17

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Alexei Davydov ,  Sameer Pawar ,  Guotong Wang ,  Gregory Morozov

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04L27/2602 ,  H04L27/26035 ,  H04L27/261 ,  H04L27/2615

Abstract: Methods, systems, apparatus, and computer programs, for providing uplink control information to an access node. In one aspect, the method can include actions of determining, by a UE, a time-domain orthogonal cover code (OCC) for a PUCCH message of a UE to multiplex the PUCCH transmission with one or more PUCCH messages from one or more other UEs, and encoding, by the UE, the PUCCH message for transmission by the UE using the OCC.

公开(公告)号：US12057892B2

公开(公告)日：2024-08-06

申请号：US17419591

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Andrey Chervyakov ,  Dmitry Belov ,  Aida Vera Lopez ,  Alexei Davydov ,  Jie Cui

IPC: H04W24/06 ,  H04B17/12 ,  H04B17/29 ,  H04L5/00

CPC classification number: H04B17/29 ,  H04B17/12 ,  H04L5/0048 ,  H04W24/06

Abstract: An approach is described to for new radio (NR) antenna test function (ATF) measurements by a user equipment (UE). The approach includes measuring a first average phase of receive signals on resource elements that carry secondary synchronization signals (SS) received by a reference individual receiver branch. The approach also includes measuring a second average phase of the receive signals on the resource elements that carry secondary synchronization signals received by one other individual receiver branch different from the reference individual receiver branch. The approach further includes determining a difference between the first average phase and the second average phase. An indication of the difference is reported to test equipment.

公开(公告)号：US12040999B2

公开(公告)日：2024-07-16

申请号：US17265168

申请日：2019-08-09

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Sameer Pawar ,  Avik Sengupta

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/542

CPC classification number: H04L5/0048 ,  H04W72/0446 ,  H04W72/542

Abstract: Technology for an eNodeB operable to decode a sounding reference signal (SRS) received from a user equipment (UE) is disclosed. The eNodeB can decode the SRS received from the UE, wherein 5 the SRS is received using one or more SRS resources in a subframe where each SRS resource includes one or more symbols. The subframe can be an uplink subframe dedicated for SRS transmission or a short transmission time interval (sTTI) subframe used for SRS transmission. The eNodeB can determine uplink channel quality information for a channel between the eNodeB and the UE based in part on the 10 SRS.

公开(公告)号：US12021588B2

公开(公告)日：2024-06-25

申请号：US17287186

申请日：2019-10-30

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Yushu Zhang ,  Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04B7/06 ,  H04B7/0417 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.

公开(公告)号：US12003435B2

公开(公告)日：2024-06-04

申请号：US17421584

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Fatemeh Hamidi-Sepehr ,  Alexei Davydov

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/02 ,  H04W72/044 ,  H04W72/23 ,  H04W76/15

CPC classification number: H04L5/0035 ,  H04W72/02 ,  H04W72/044 ,  H04W72/23 ,  H04W76/15

Abstract: Disclosed are systems and methods of selecting physical downlink control channel (PDCCH) candidates for non-coherent joint transmission (NC-JT) in a wireless network. For instance, first and second sets of ControlResourceSet and SearchSpace parameters can be configured for a UE. The first and second sets of ControlResourceSet and SearchSpace parameters are configured on a first downlink (DL) component carrier to enable NC-JT. A control channel element (CCE) limit can be determined for the first and second sets of ControlResourceSet and SearchSpace parameters. One or more PDCCH candidates can then be selected for the first and second sets of ControlResourceSet and SearchSpace parameters based at least in part on the determined CCE limits. NC-JT communication including at least a first communication from a first transmission and reception point (TRP), and a second communication from a second TRP can then be received.

公开(公告)号：US11930522B2

公开(公告)日：2024-03-12

申请号：US17745112

申请日：2022-05-16

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Sameer Pawar

IPC: H04W72/541 ,  H04B17/336 ,  H04J13/16 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04W72/541 ,  H04B17/336 ,  H04J13/16 ,  H04L5/005 ,  H04W72/046

Abstract: Techniques discussed herein can facilitate reduced density CSI (Channel State Information)-RS (Reference Signals). One example embodiment can be employed at a UE (User Equipment) and can comprise processing circuitry configured to receive and process a configuration message that comprises one or more configuration parameters for one or more CSI (Channel State Information)-RS (Reference Signal) APs (Antenna Ports) of a configurable density CSI-RS. The configuration parameters indicate a density of CSI-RS resource per Physical Resource Block (PRB) per CSI-RS AP and a PRB offset. The processing circuitry is further configured to determine a set of REs (Resource Elements) for the one or more CSI-RS APs of the configurable density CSI-RS based on the one or more configuration parameters and perform measurements on the configurable density CSI-RS from the set of REs to determine one or more CSI parameters. The one or more configuration parameters are provided per CSI-RS resource configuration.

公开(公告)号：US20240008069A1

公开(公告)日：2024-01-04

申请号：US18364782

申请日：2023-08-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/542 ,  H04B7/06 ,  H04L5/00 ,  H04W72/541 ,  H04B7/0417

CPC classification number: H04W72/542 ,  H04B7/0617 ,  H04L5/0091 ,  H04L5/0023 ,  H04L5/0053 ,  H04B7/0626 ,  H04L5/0039 ,  H04W72/541 ,  H04B7/0417 ,  H04L5/0048

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.